The main thing that sets Hasselbad apart are leaf shutter lenses. As in, there's a leaf shutter inside the lens instead of a curtain shutter at the focal plane. This allows flash to sync at full speed, so 1/2000 flash sync speed. This is really useful to freeze action and overpower sunlight.
The Hasselbad X system like you posted uses the same sensor as the Fuji medium format cameras. But their H system has an even bigger sensor that can capture more light and produce narrower depth of field.
But there's plenty of downsides. Autofocus is garbage on the X system (the H system I hear is no worse than typical DSLRs but the big lenses focus more slowly). Cost is obviously a big factor. The cameras and lenses are large and heavy.
Now, these features are not crucial to every type of photography. I doubt you'd see a sports photographer with a Hasselbad. Their form factor makes them unsuitable for travel photography, or anything requiring portability.
Ultimately there's no good or bad camera. It's all a question of whether or not the camera is suitable for your use cases. Most photographers, even if money was no issue, would not use a Hasselbad. Some, especially those shooting high end studio work, would though.
